Draft-equalizer.



PATENTBD JUNE 25, y1907. J. K. WooLooTT.

DRAFT EQUALIZER. APPLIoATIoN FILED AUG. z. 190e.

@of/WW A TTQRNE YS 'riNiTnD STATES PATENT OFFICE.

DRAFT-EQUALIZER.

Specification of Letters Patent.

Patented June 25, 1907.

Application filed August 2,1906. Serial No. 328,920.

To all uffi/0712, it Nuty concern:

Be it known that I, JAMES K. WooLoo'r'r, a citizen ofthe United States,residing at Alcester, in the county of Union and State of South Dakota,have invented a new and useful Draft-Equalizer, of which the followingis a sj'iecificatioiii.

This invention relates to draft equalizers and its object is to providea simple and inexpensive device of this character which is especiallydesigned for use with four draft animals.

The invention consists of a draw bar to which are pivoted arms extendingrearwardly from an equalizer bar. The ends of this equalizer bar areconnected by pivoted links with angular or bell crank levers fulcrumedupon the draw bar and to the ends of which the draft animals are adaptedto be fastened.

The invention also consists of certain other novel features ofconstruction and combinations of parts which will be hereinafter morefully described and pointed out in the claims.

In the accompanying drawings is shown the preferred form of theinvention.

In said drawings: Figure l is a plan view; and Fig. 2 is a centraltransverse section.

Referring to the figures by characters of reference, 1 is a draw bar ofany preferred proportions and having an eye 2 adapted to be engaged by asuitable clevis not shown whereby the same may be secured to the agHricultural implement or machine to be operated. An equalizer bar 3 isdisposed in front of the draw bar and has rearwardly extending parallelarms 4 bolted or otherwise rigidly secured thereto at a point removedfrom the center thereof and these arms embrace the draw bar at a pointadj acent one end of the bar and are pivoted thereto as shown at 5 anddirectly in .front of the eye 2. Similar angular or bell crank levers 6and 6a are pivoted at their elbows as at 7 to the end portions of thedraw bar. One end of each of these levers projects bevond the equalizerbar and the other ends of the levers are pivoted to links S which arein. turn pivoted to the end portions of the equalizer bar. A series ofopenings 9 is formed in one en d of the draw bar so that the pivot boltof the bell crank lever 6a can be placed in any one of them so as toregulate theleverage. The same provision is made for connecting the linkof the same bell crank lever to the equalizer bar.

In using this equalizer one of the draft animals is harnessed to thefront end of the lever 6a while a three-horse equalizer, which is notshown,is connected to the forward end of the lever 6. Any forward pullupon the lever 6a will cause the forward movement of the long end of thedraw bar and the backward movement of the opposite end thereof. Thispull, however, will be offset by the pull exerted by the three horsesupon the short end of the draw bar. The angular levers 6 and 6a willcause the equalizer bar 3 to rock upon its pivot 5 so that the pressurewill be equally distributed among the horses.

The preferred form of the invention has been set forth in the foregoingdescription but I do not limit myself thereto as I am aware thatmodifications may be made therein without departing from the spirit orsacrificing the advantages thereof, and I therefore reserve the right tomake such changes as fairly fall within the scope of the claims.

Vhat is claimed is:

l. In a draft equalizer the combination with a draw bar and an equalizerbar pivotally connected at a point removed from its center to one endportion of the draw bar; of

angular levers fulcrumed adjacent the ends I of the draw bar andextending beyond the equalizer bar, and pivotal connections between saidlevers and the ends of the equal izer bar.

2.l A draft equalizer comprising a draw bar, means removed from thecenter thereof for connecting it to an object to be moved, bell cranklevers fulorumed adjacent the ends of the draw bar, an equalizer bar, anarm extending rearwardly therefrom at a point reV moved from its center,said arm being pivoted to the draw bar adjacent the connecting meansthereon, and links pivoted to the ends of the equalizer bar and levers,said levers projecting beyond the equalizer bar.

3. A draft equalizer comprising a draw bar, an equalizer bar disposed infront thereof, an arm extending from one end portion of the equalizerbar and pivoted to the opposite end portion of the draw bar, a bellcrank lever adjustably pivoted to one end portion of the draw bar, alink pivoted to said lever and IOO adjustebly pivoted to one end portionof the In testimony that I elaiin the foregoing as equalizer bar, e bellcrank lever pivoted to niyown, I have hereto affixed mysignature in theother end portion of the draw bar, and a the presence of two Witnesses.

link connection between said lever and the JAMES K. VOOLCOTT. adjoiningend portion of the equalizer bar, Witnesses:

said levers extending beyond the equalizer WILLIE SoHNosE,

bar. JOHN G. C. HUBBARD.

